I have bridgestone potenza's, uh 245x35x18's I believe, as for the rusted hangers that jabela mentioned, it could be that, but it doesnt explain the loss of power when I hit the gas. I probably should have made it more clear that when I hit the gas and it hits that sweet spot in the rpm's, I might as well be in reverse cause the car doesnt reallly accelerate at all...

Automatic transmission or manual? Could be a slipping clutch or faulty auto. Could be damaged guibo, could be bad transmission mounts.